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LYT4314E - LYTSwitch-4 Series AC-DC Offline Switching IC

The LYT4314E from Power Integrations is a high-performance AC-DC offline switching IC from the LYTSwitch-4 family, designed for isolated power conversion applications up to 22W. This integrated switcher combines flyback, step-down (buck), and step-up (boost) topologies with a 725V breakdown voltage rating, making it ideal for universal input LED drivers, auxiliary power supplies, and compact AC-DC converters.

Key Features:

  • Integrated 725V power MOSFET for high-voltage applications
  • 22W maximum output power capability
  • 140kHz switching frequency for compact magnetics
  • Multi-topology support: flyback, buck, and boost configurations
  • 99.9% maximum duty cycle for excellent efficiency
  • Wide operating temperature range: -40°C to 150°C (TJ)
  • Through-hole eSIP-7C package with exposed pad for enhanced thermal performance
  • RoHS compliant

Applications: LED lighting drivers, smart home power supplies, industrial control systems, white goods appliances, auxiliary power for motor drives, and general-purpose offline power conversion.

Authorized distributor stock with full manufacturer traceability and technical documentation support.

Product attributes Property Value
Manufacturer Power Integrations
Product Series LYTSwitch™-4
Packaging |
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 725V
Topology Flyback, Step-Down (Buck), Step-Up (Boost)
Voltage - Start Up -
Voltage - Supply (Vcc/Vdd) -
Duty Cycle 99.9%
Frequency - Switching 140kHz
Power (Watts) 22 W
Fault Protection -
Control Features -
Operating Temperature -40°C ~ 150°C (TJ)
Grade -
Qualification -
Mounting Type Through Hole
Package / Case 7-SSIP, 6 Leads, Exposed Pad, Formed Leads
Supplier Device Package eSIP-7C
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY